Method for building orchard via building soil at bare purple rock sloping fields

Abstract

A method for building orchard via building soil at bare purple rock sloping fields comprises the following steps of: (1) selecting purple shale interbedding bare rock or purple shale bare rock gentle sloping fields with gradients of less than 15 degrees at the southeast slope of purple rock hillock to be used as the object for orchard soilbuilding; (2) delimiting explosion lines and shot hole points at the selected soilbuilding sloping fields along the contour line; (3) performing two times of layered directional explosions in spring, and stacking thin layers to form ditches, connecting the ditches with drainage ditches; (4) stirring the gravels in thin piles 1-2 times in high temperature seasons like summer and autumn; (5) backfilling the weathered broken gravels and half-weathered materials and weathered materials in next autumn, and filling organic fertilizers; (6) building horizontal ladder soils at the same height; (7) importing new soil and fertilizing according to standards, and importing fine granular soils; (8) after fruit trees are planted, turning over the surface soil layer; (9) interplanting crops, increasing the soil fertility, wherein watermelon and leguminous crops are planted in the first two years for improving soil fertility; and 1000-1500 kg of livestock and poultry manures are applied in every 667m<2> for interplanting watermelon. By adopting the invention, soils can be built in the bare purple rock sloping fields, and orchard is built; the purpose of recycling and highly-efficient utilization of the lands difficult to use in purple rock areas is realized.

Description

technical field [0001] The invention relates to a method for building soil on a purple rock bare rock slope, in particular to a method for building soil on a purple rock bare rock slope to build an orchard. Background technique [0002] Purple soil mountainous hills are one of the main land types in the south and southwest of my country, among which purple rocks are widely distributed in the Sichuan Basin and have the largest area. The purple soil is rich in calcium, phosphorus and potassium, and the parent rock is easy to break and weather. The Soil Research Office of the Chengdu Branch of the Chinese Academy of Sciences once conducted an open-air weathering speed test on purple rocks after they were broken. Therefore, the purple soil regenerates quickly and is a unique and valuable land resource in our country. In particular, the hilly land with purple soil has a small slope and is generally close to the water source, which is convenient for irrigation and is more suitab...

AI Technical Summary

Problems solved by technology

[0006] However, it was unsuccessful to develop economic forests and fruit trees on semi-exposed purple rock slopes with thin soil layers (soil thickness below 10cm) by blasting moats, especially in the development of purple rock bare rock slopes to plant economic trees and fruits.

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